1021210220131 has 8 divisors (see below), whose sum is σ = 1021555252400. Its totient is φ = 1020865254912.

The previous prime is 1021210220117. The next prime is 1021210220153. The reversal of 1021210220131 is 1310220121201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021210220131 - 2⁷ = 1021210220003 is a prime.

It is a super-2 number, since 2×1021210220131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021210220101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65249395 + ... + 65265043.

It is an arithmetic number, because the mean of its divisors is an integer number (127694406550).

Almost surely, 2^{1021210220131} is an apocalyptic number.

1021210220131 is a deficient number, since it is larger than the sum of its proper divisors (345032269).

1021210220131 is a wasteful number, since it uses less digits than its factorization.

1021210220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33525.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1021210220131 its reverse (1310220121201), we get a palindrome (2331430341332).

The spelling of 1021210220131 in words is "one trillion, twenty-one billion, two hundred ten million, two hundred twenty thousand, one hundred thirty-one".