2121022021010 has 16 divisors (see below), whose sum is σ = 3818328180696. Its totient is φ = 848300243328.

The previous prime is 2121022021007. The next prime is 2121022021033. The reversal of 2121022021010 is 101202201212.

It can be written as a sum of positive squares in 4 ways, for example, as 1576101974041 + 544920046969 = 1255429^2 + 738187^2 .

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, 13488557 + ... + 13644896.

Almost surely, 2^{2121022021010} is an apocalyptic number.

2121022021010 is a deficient number, since it is larger than the sum of its proper divisors (1697306159686).

2121022021010 is a wasteful number, since it uses less digits than its factorization.

2121022021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27141277.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2121022021010 its reverse (101202201212), we get a palindrome (2222224222222).

The spelling of 2121022021010 in words is "two trillion, one hundred twenty-one billion, twenty-two million, twenty-one thousand, ten".