121010221202010 has 64 divisors (see below), whose sum is σ = 332092103019264. Its totient is φ = 27644616345600.

The previous prime is 121010221202009. The next prime is 121010221202011. The reversal of 121010221202010 is 10202122010121.

It is an interprime number because it is at equal distance from previous prime (121010221202009) and next prime (121010221202011).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (121010221202011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154428951 + ... + 155210570.

It is an arithmetic number, because the mean of its divisors is an integer number (5188939109676).

Almost surely, 2^{121010221202010} is an apocalyptic number.

121010221202010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121010221202010 is an abundant number, since it is smaller than the sum of its proper divisors (211081881817254).

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

121010221202010 is a wasteful number, since it uses less digits than its factorization.

121010221202010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309641399.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121010221202010 its reverse (10202122010121), we get a palindrome (131212343212131).

The spelling of 121010221202010 in words is "one hundred twenty-one trillion, ten billion, two hundred twenty-one million, two hundred two thousand, ten".