101220021210 has 128 divisors (see below), whose sum is σ = 307836868608. Its totient is φ = 20687904000.

The previous prime is 101220021173. The next prime is 101220021223. The reversal of 101220021210 is 12120022101.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 218256 + ... + 500075.

It is an arithmetic number, because the mean of its divisors is an integer number (2404975536).

Almost surely, 2^101220021210 is an apocalyptic number.

101220021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220021210 is an abundant number, since it is smaller than the sum of its proper divisors (206616847398).

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

101220021210 is a wasteful number, since it uses less digits than its factorization.

101220021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718420.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101220021210 its reverse (12120022101), we get a palindrome (113340043311).

The spelling of 101220021210 in words is "one hundred one billion, two hundred twenty million, twenty-one thousand, two hundred ten".