102121101012010 has 32 divisors (see below), whose sum is σ = 184173511421952. Its totient is φ = 40769436140160.

The previous prime is 102121101011999. The next prime is 102121101012017. The reversal of 102121101012010 is 10210101121201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102121101012017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569378967 + ... + 569558293.

It is an arithmetic number, because the mean of its divisors is an integer number (5755422231936).

Almost surely, 2^{102121101012010} is an apocalyptic number.

102121101012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121101012010 is a deficient number, since it is larger than the sum of its proper divisors (82052410409942).

102121101012010 is a wasteful number, since it uses less digits than its factorization.

102121101012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289158.

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

Adding to 102121101012010 its reverse (10210101121201), we get a palindrome (112331202133211).

The spelling of 102121101012010 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred one million, twelve thousand, ten".