102121102012 has 6 divisors (see below), whose sum is σ = 178711928528. Its totient is φ = 51060551004.

The previous prime is 102121101959. The next prime is 102121102037. The reversal of 102121102012 is 210201121201.

It is a super-2 number, since 2×102121102012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102121101983 and 102121102001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12765137748 + ... + 12765137755.

Almost surely, 2^102121102012 is an apocalyptic number.

It is an amenable number.

102121102012 is a deficient number, since it is larger than the sum of its proper divisors (76590826516).

102121102012 is a wasteful number, since it uses less digits than its factorization.

102121102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25530275507 (or 25530275505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102121102012 its reverse (210201121201), we get a palindrome (312322223213).

The spelling of 102121102012 in words is "one hundred two billion, one hundred twenty-one million, one hundred two thousand, twelve".