121311010030212 has 36 divisors (see below), whose sum is σ = 319979765589120. Its totient is φ = 38678872762992.

The previous prime is 121311010030207. The next prime is 121311010030349. The reversal of 121311010030212 is 212030010113121.

121311010030212 is a `hidden beast` number, since 1 + 213 + 110 + 100 + 30 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×121311010030212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73255440012 + ... + 73255441667.

It is an arithmetic number, because the mean of its divisors is an integer number (8888326821920).

Almost surely, 2^{121311010030212} is an apocalyptic number.

121311010030212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121311010030212 is an abundant number, since it is smaller than the sum of its proper divisors (198668755558908).

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

121311010030212 is a wasteful number, since it uses less digits than its factorization.

121311010030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146510881712 (or 146510881707 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121311010030212 its reverse (212030010113121), we get a palindrome (333341020143333).

The spelling of 121311010030212 in words is "one hundred twenty-one trillion, three hundred eleven billion, ten million, thirty thousand, two hundred twelve".