1021201011210 has 32 divisors (see below), whose sum is σ = 2517122495232. Its totient is φ = 264960262080.

The previous prime is 1021201011199. The next prime is 1021201011221. The reversal of 1021201011210 is 121101021201.

It is an interprime number because it is at equal distance from previous prime (1021201011199) and next prime (1021201011221).

It is a Curzon number.

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, 459999346 + ... + 460001565.

It is an arithmetic number, because the mean of its divisors is an integer number (78660077976).

Almost surely, 2^{1021201011210} is an apocalyptic number.

1021201011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021201011210 is an abundant number, since it is smaller than the sum of its proper divisors (1495921484022).

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

1021201011210 is a wasteful number, since it uses less digits than its factorization.

1021201011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920000958.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1021201011210 its reverse (121101021201), we get a palindrome (1142302032411).

Subtracting from 1021201011210 its reverse (121101021201), we obtain a palindrome (900099990009).

The spelling of 1021201011210 in words is "one trillion, twenty-one billion, two hundred one million, eleven thousand, two hundred ten".