102121220201010 has 32 divisors (see below), whose sum is σ = 252997087468032. Its totient is φ = 26353863277440.

The previous prime is 102121220200981. The next prime is 102121220201137. The reversal of 102121220201010 is 10102022121201.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 54903880899 + ... + 54903882758.

It is an arithmetic number, because the mean of its divisors is an integer number (7906158983376).

Almost surely, 2^{102121220201010} is an apocalyptic number.

102121220201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121220201010 is an abundant number, since it is smaller than the sum of its proper divisors (150875867267022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102121220201010 is a wasteful number, since it uses less digits than its factorization.

102121220201010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109807763698.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102121220201010 its reverse (10102022121201), we get a palindrome (112223242322211).

The spelling of 102121220201010 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twenty million, two hundred one thousand, ten".