1021201220010 has 32 divisors (see below), whose sum is σ = 2452402500480. Its totient is φ = 272151483968.

The previous prime is 1021201219981. The next prime is 1021201220021. The reversal of 1021201220010 is 100221021201.

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, 10503390 + ... + 10600169.

It is an arithmetic number, because the mean of its divisors is an integer number (76637578140).

Almost surely, 2^{1021201220010} is an apocalyptic number.

1021201220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021201220010 is an abundant number, since it is smaller than the sum of its proper divisors (1431201280470).

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

1021201220010 is a wasteful number, since it uses less digits than its factorization.

1021201220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21105182.

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

Adding to 1021201220010 its reverse (100221021201), we get a palindrome (1121422241211).

The spelling of 1021201220010 in words is "one trillion, twenty-one billion, two hundred one million, two hundred twenty thousand, ten".