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122121102 = 2322039239
BaseRepresentation
bin1110100011101…
…10101110001110
322111210101122210
413101312232032
5222230333402
620041251250
73012004125
oct721665616
9274711583
10122121102
1162a30434
1234a93b26
131c3ba50c
141230cabc
15aac406c
hex7476b8e

122121102 has 16 divisors (see below), whose sum is σ = 244379520. Its totient is φ = 40684152.

The previous prime is 122121089. The next prime is 122121107. The reversal of 122121102 is 201121221.

Adding to 122121102 its reverse (201121221), we get a palindrome (323242323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8599 + ... + 17837.

It is an arithmetic number, because the mean of its divisors is an integer number (15273720).

Almost surely, 2122121102 is an apocalyptic number.

122121102 is an abundant number, since it is smaller than the sum of its proper divisors (122258418).

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

122121102 is a wasteful number, since it uses less digits than its factorization.

122121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11447.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 122121102 is about 11050.8416874010. The cubic root of 122121102 is about 496.1316177549.

The spelling of 122121102 in words is "one hundred twenty-two million, one hundred twenty-one thousand, one hundred two".

Divisors: 1 2 3 6 2203 4406 6609 9239 13218 18478 27717 55434 20353517 40707034 61060551 122121102