121012211110 has 32 divisors (see below), whose sum is σ = 249299764992. Its totient is φ = 41429841120.

The previous prime is 121012211093. The next prime is 121012211153. The reversal of 121012211110 is 11112210121.

It is a happy number.

It is a super-3 number, since 3×121012211110³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1202532 + ... + 1299271.

It is an arithmetic number, because the mean of its divisors is an integer number (7790617656).

Almost surely, 2^121012211110 is an apocalyptic number.

121012211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012211110 is an abundant number, since it is smaller than the sum of its proper divisors (128287553882).

121012211110 is a wasteful number, since it uses less digits than its factorization.

121012211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502508.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121012211110 its reverse (11112210121), we get a palindrome (132124421231).

The spelling of 121012211110 in words is "one hundred twenty-one billion, twelve million, two hundred eleven thousand, one hundred ten".