101213002121 has 16 divisors (see below), whose sum is σ = 129122239488. Its totient is φ = 77033149200.

The previous prime is 101213002097. The next prime is 101213002129. The reversal of 101213002121 is 121200312101.

It is a de Polignac number, because none of the positive numbers 2^k-101213002121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101213002096 and 101213002105.

It is not an unprimeable number, because it can be changed into a prime (101213002129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15281045 + ... + 15287666.

It is an arithmetic number, because the mean of its divisors is an integer number (8070139968).

Almost surely, 2^101213002121 is an apocalyptic number.

101213002121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101213002121 is a deficient number, since it is larger than the sum of its proper divisors (27909237367).

101213002121 is a wasteful number, since it uses less digits than its factorization.

101213002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30568772.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101213002121 its reverse (121200312101), we get a palindrome (222413314222).

The spelling of 101213002121 in words is "one hundred one billion, two hundred thirteen million, two thousand, one hundred twenty-one".