121010910212 has 24 divisors (see below), whose sum is σ = 224554480416. Its totient is φ = 56862912128.

The previous prime is 121010910211. The next prime is 121010910227. The reversal of 121010910212 is 212019010121.

It is not an unprimeable number, because it can be changed into a prime (121010910211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256318 + ... + 1349205.

It is an arithmetic number, because the mean of its divisors is an integer number (9356436684).

Almost surely, 2^121010910212 is an apocalyptic number.

It is an amenable number.

121010910212 is a deficient number, since it is larger than the sum of its proper divisors (103543570204).

121010910212 is a wasteful number, since it uses less digits than its factorization.

121010910212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606227 (or 2606225 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 121010910212 its reverse (212019010121), we get a palindrome (333029920333).

The spelling of 121010910212 in words is "one hundred twenty-one billion, ten million, nine hundred ten thousand, two hundred twelve".