121020212102 has 16 divisors (see below), whose sum is σ = 192337392672. Its totient is φ = 56912519040.

The previous prime is 121020212099. The next prime is 121020212111. The reversal of 121020212102 is 201212020121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141274 + ... + 1242797.

It is an arithmetic number, because the mean of its divisors is an integer number (12021087042).

Almost surely, 2^121020212102 is an apocalyptic number.

121020212102 is a deficient number, since it is larger than the sum of its proper divisors (71317180570).

121020212102 is a wasteful number, since it uses less digits than its factorization.

121020212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385583.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121020212102 its reverse (201212020121), we get a palindrome (322232232223).

The spelling of 121020212102 in words is "one hundred twenty-one billion, twenty million, two hundred twelve thousand, one hundred two".