1012001021210 has 64 divisors (see below), whose sum is σ = 1900787834880. Its totient is φ = 387637776960.

The previous prime is 1012001021209. The next prime is 1012001021221. The reversal of 1012001021210 is 121201002101.

It is a junction number, because it is equal to n+sod(n) for n = 1012001021191 and 1012001021200.

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, 5372279 + ... + 5557461.

It is an arithmetic number, because the mean of its divisors is an integer number (29699809920).

Almost surely, 2^{1012001021210} is an apocalyptic number.

1012001021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012001021210 is a deficient number, since it is larger than the sum of its proper divisors (888786813670).

1012001021210 is a wasteful number, since it uses less digits than its factorization.

1012001021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185483.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1012001021210 its reverse (121201002101), we get a palindrome (1133202023311).

The spelling of 1012001021210 in words is "one trillion, twelve billion, one million, twenty-one thousand, two hundred ten".