101202111121 has 4 divisors (see below), whose sum is σ = 102917401200. Its totient is φ = 99486821044.

The previous prime is 101202111113. The next prime is 101202111133. The reversal of 101202111121 is 121111202101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101202111121 - 2³ = 101202111113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101202111191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857644951 + ... + 857645068.

It is an arithmetic number, because the mean of its divisors is an integer number (25729350300).

Almost surely, 2^101202111121 is an apocalyptic number.

It is an amenable number.

101202111121 is a deficient number, since it is larger than the sum of its proper divisors (1715290079).

101202111121 is an equidigital number, since it uses as much as digits as its factorization.

101202111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715290078.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101202111121 its reverse (121111202101), we get a palindrome (222313313222).

The spelling of 101202111121 in words is "one hundred one billion, two hundred two million, one hundred eleven thousand, one hundred twenty-one".