1020212021200 has 120 divisors (see below), whose sum is σ = 2640132020736. Its totient is φ = 377750208000.

The previous prime is 1020212021119. The next prime is 1020212021239. The reversal of 1020212021200 is 21202120201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1503391 + ... + 2073790.

Almost surely, 2^{1020212021200} is an apocalyptic number.

1020212021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020212021200 is an abundant number, since it is smaller than the sum of its proper divisors (1619919999536).

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

1020212021200 is a wasteful number, since it uses less digits than its factorization.

1020212021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577253 (or 3577242 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020212021200 its reverse (21202120201), we get a palindrome (1041414141401).

Subtracting from 1020212021200 its reverse (21202120201), we obtain a palindrome (999009900999).

The spelling of 1020212021200 in words is "one trillion, twenty billion, two hundred twelve million, twenty-one thousand, two hundred".