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2122111230 = 2351791912069
BaseRepresentation
bin111111001111100…
…1101100011111110
312110220010102100020
41332133031203332
513321230024410
6550324113010
7103405435131
oct17637154376
95426112306
102122111230
11999970638
124b2835766
1327a860225
14161ba4218
15c6483a70
hex7e7cd8fe

2122111230 has 64 divisors (see below), whose sum is σ = 5150822400. Its totient is φ = 559518080.

The previous prime is 2122111223. The next prime is 2122111237. The reversal of 2122111230 is 321112212.

It is an interprime number because it is at equal distance from previous prime (2122111223) and next prime (2122111237).

It is a super-2 number, since 2×21221112302 = 9006712144984225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122111237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1024636 + ... + 1026704.

It is an arithmetic number, because the mean of its divisors is an integer number (80481600).

Almost surely, 22122111230 is an apocalyptic number.

2122111230 is an abundant number, since it is smaller than the sum of its proper divisors (3028711170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122111230 is a wasteful number, since it uses less digits than its factorization.

2122111230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2122111230 is about 46066.3785205653. The cubic root of 2122111230 is about 1285.0579553668.

Adding to 2122111230 its reverse (321112212), we get a palindrome (2443223442).

The spelling of 2122111230 in words is "two billion, one hundred twenty-two million, one hundred eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 179 191 358 382 537 573 895 955 1074 1146 1790 1910 2069 2685 2865 4138 5370 5730 6207 10345 12414 20690 31035 34189 62070 68378 102567 170945 205134 341890 370351 395179 512835 740702 790358 1025670 1111053 1185537 1851755 1975895 2222106 2371074 3703510 3951790 5555265 5927685 11110530 11855370 70737041 141474082 212211123 353685205 424422246 707370410 1061055615 2122111230