121012021120210 has 32 divisors (see below), whose sum is σ = 245817522532800. Its totient is φ = 42486979200960.

The previous prime is 121012021120183. The next prime is 121012021120217. The reversal of 121012021120210 is 12021120210121.

It is a super-2 number, since 2×121012021120210² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121012021120217) 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, 18967398240 + ... + 18967404619.

It is an arithmetic number, because the mean of its divisors is an integer number (7681797579150).

Almost surely, 2^{121012021120210} is an apocalyptic number.

121012021120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012021120210 is an abundant number, since it is smaller than the sum of its proper divisors (124805501412590).

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

121012021120210 is a wasteful number, since it uses less digits than its factorization.

121012021120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37934802906.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121012021120210 its reverse (12021120210121), we get a palindrome (133033141330331).

The spelling of 121012021120210 in words is "one hundred twenty-one trillion, twelve billion, twenty-one million, one hundred twenty thousand, two hundred ten".