2021102121010 has 16 divisors (see below), whose sum is σ = 4157695791936. Its totient is φ = 692949298608.

The previous prime is 2021102120987. The next prime is 2021102121011. The reversal of 2021102121010 is 101212011202.

It is a super-2 number, since 2×2021102121010² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021102121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14436443652 + ... + 14436443791.

It is an arithmetic number, because the mean of its divisors is an integer number (259855986996).

Almost surely, 2^{2021102121010} is an apocalyptic number.

2021102121010 is an abundant number, since it is smaller than the sum of its proper divisors (2136593670926).

2021102121010 is a wasteful number, since it uses less digits than its factorization.

2021102121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28872887457.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021102121010 its reverse (101212011202), we get a palindrome (2122314132212).

The spelling of 2021102121010 in words is "two trillion, twenty-one billion, one hundred two million, one hundred twenty-one thousand, ten".