1021000122010 has 32 divisors (see below), whose sum is σ = 2006172634752. Its totient is φ = 371032092480.

The previous prime is 1021000122001. The next prime is 1021000122031. The reversal of 1021000122010 is 102210001201.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 2837989 + ... + 3177448.

It is an arithmetic number, because the mean of its divisors is an integer number (62692894836).

Almost surely, 2^{1021000122010} is an apocalyptic number.

1021000122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021000122010 is a deficient number, since it is larger than the sum of its proper divisors (985172512742).

1021000122010 is a wasteful number, since it uses less digits than its factorization.

1021000122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016998.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1021000122010 its reverse (102210001201), we get a palindrome (1123210123211).

The spelling of 1021000122010 in words is "one trillion, twenty-one billion, one hundred twenty-two thousand, ten".