121012212111202 has 64 divisors (see below), whose sum is σ = 203637971980800. Its totient is φ = 53638505496576.

The previous prime is 121012212111199. The next prime is 121012212111269. The reversal of 121012212111202 is 202111212210121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121012212111202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11086578 + ... + 19103314.

It is an arithmetic number, because the mean of its divisors is an integer number (3181843312200).

Almost surely, 2^{121012212111202} is an apocalyptic number.

121012212111202 is a deficient number, since it is larger than the sum of its proper divisors (82625759869598).

121012212111202 is a wasteful number, since it uses less digits than its factorization.

121012212111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8017075.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121012212111202 its reverse (202111212210121), we get a palindrome (323123424321323).

The spelling of 121012212111202 in words is "one hundred twenty-one trillion, twelve billion, two hundred twelve million, one hundred eleven thousand, two hundred two".