1021222122010 has 16 divisors (see below), whose sum is σ = 1946329221096. Its totient is φ = 384460092928.

The previous prime is 1021222121989. The next prime is 1021222122029. The reversal of 1021222122010 is 102212221201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 593258874289 + 427963247721 = 770233^2 + 654189^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3003594307 + ... + 3003594646.

Almost surely, 2^{1021222122010} is an apocalyptic number.

1021222122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021222122010 is a deficient number, since it is larger than the sum of its proper divisors (925107099086).

1021222122010 is a wasteful number, since it uses less digits than its factorization.

1021222122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007188977.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021222122010 its reverse (102212221201), we get a palindrome (1123434343211).

The spelling of 1021222122010 in words is "one trillion, twenty-one billion, two hundred twenty-two million, one hundred twenty-two thousand, ten".