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2120201222 = 21955794769
BaseRepresentation
bin111111001011111…
…1011010000000110
312110202112101022012
41332113323100012
513320232414342
6550215134222
7103353261446
oct17627732006
95422471265
102120201222
11998886617
124b2074372
1327a341a49
14161828126
15c6207b82
hex7e5fb406

2120201222 has 8 divisors (see below), whose sum is σ = 3347686200. Its totient is φ = 1004305824.

The previous prime is 2120201221. The next prime is 2120201243. The reversal of 2120201222 is 2221020212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2120201197 and 2120201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120201221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27897347 + ... + 27897422.

It is an arithmetic number, because the mean of its divisors is an integer number (418460775).

Almost surely, 22120201222 is an apocalyptic number.

2120201222 is a deficient number, since it is larger than the sum of its proper divisors (1227484978).

2120201222 is a wasteful number, since it uses less digits than its factorization.

2120201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55794790.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2120201222 is about 46045.6428123226. The cubic root of 2120201222 is about 1284.6723004756.

Adding to 2120201222 its reverse (2221020212), we get a palindrome (4341221434).

The spelling of 2120201222 in words is "two billion, one hundred twenty million, two hundred one thousand, two hundred twenty-two".

Divisors: 1 2 19 38 55794769 111589538 1060100611 2120201222