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2120122111100 = 225273028745873
BaseRepresentation
bin11110110110100001001…
…000000001010001111100
321111200101221210100101212
4132312201020001101330
5234214002230023400
64301545354423552
7306113413413350
oct36664110012174
97450357710355
102120122111100
11748158729874
122a2a88731bb8
13124c07b34516
1474886101460
153a238a54335
hex1eda120147c

2120122111100 has 36 divisors (see below), whose sum is σ = 5257902837264. Its totient is φ = 726899009280.

The previous prime is 2120122111097. The next prime is 2120122111109. The reversal of 2120122111100 is 11112210212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120122111109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1514372237 + ... + 1514373636.

Almost surely, 22120122111100 is an apocalyptic number.

2120122111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120122111100 is an abundant number, since it is smaller than the sum of its proper divisors (3137780726164).

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

2120122111100 is a wasteful number, since it uses less digits than its factorization.

2120122111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028745894 (or 3028745887 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2120122111100 its reverse (11112210212), we get a palindrome (2131234321312).

The spelling of 2120122111100 in words is "two trillion, one hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 3028745873 6057491746 12114983492 15143729365 21201221111 30287458730 42402442222 60574917460 75718646825 84804884444 106006105555 151437293650 212012211110 302874587300 424024422220 530030527775 1060061055550 2120122111100