1021022220010 has 32 divisors (see below), whose sum is σ = 1989467338320. Its totient is φ = 375039479808.

The previous prime is 1021022219999. The next prime is 1021022220037. The reversal of 1021022220010 is 100222201201.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 258982263409 + 762039956601 = 508903^2 + 872949^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 20322105 + ... + 20372284.

Almost surely, 2^{1021022220010} is an apocalyptic number.

1021022220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021022220010 is a deficient number, since it is larger than the sum of its proper divisors (968445118310).

1021022220010 is a wasteful number, since it uses less digits than its factorization.

1021022220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40694602.

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

Adding to 1021022220010 its reverse (100222201201), we get a palindrome (1121244421211).

The spelling of 1021022220010 in words is "one trillion, twenty-one billion, twenty-two million, two hundred twenty thousand, ten".