10211021220210 has 64 divisors (see below), whose sum is σ = 24520562352000. Its totient is φ = 2721371558912.

The previous prime is 10211021220181. The next prime is 10211021220229. The reversal of 10211021220210 is 1202212011201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10211021220210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429220996 + ... + 429244784.

It is an arithmetic number, because the mean of its divisors is an integer number (383133786750).

Almost surely, 2^{10211021220210} is an apocalyptic number.

10211021220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10211021220210 is an abundant number, since it is smaller than the sum of its proper divisors (14309541131790).

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

10211021220210 is a wasteful number, since it uses less digits than its factorization.

10211021220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31435.

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

Adding to 10211021220210 its reverse (1202212011201), we get a palindrome (11413233231411).

The spelling of 10211021220210 in words is "ten trillion, two hundred eleven billion, twenty-one million, two hundred twenty thousand, two hundred ten".