121211012102 has 8 divisors (see below), whose sum is σ = 182492416800. Its totient is φ = 60380206504.

The previous prime is 121211012053. The next prime is 121211012147. The reversal of 121211012102 is 201210112121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112649102 + ... + 112650177.

It is an arithmetic number, because the mean of its divisors is an integer number (22811552100).

Almost surely, 2^121211012102 is an apocalyptic number.

121211012102 is a deficient number, since it is larger than the sum of its proper divisors (61281404698).

121211012102 is a wasteful number, since it uses less digits than its factorization.

121211012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225299550.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121211012102 its reverse (201210112121), we get a palindrome (322421124223).

The spelling of 121211012102 in words is "one hundred twenty-one billion, two hundred eleven million, twelve thousand, one hundred two".