2021022201121 has 32 divisors (see below), whose sum is σ = 2526411202560. Its totient is φ = 1570642324800.

The previous prime is 2021022201119. The next prime is 2021022201167. The reversal of 2021022201121 is 1211022201202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2021022201121 - 2¹ = 2021022201119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021022201095 and 2021022201104.

It is not an unprimeable number, because it can be changed into a prime (2021022231121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59203560 + ... + 59237686.

It is an arithmetic number, because the mean of its divisors is an integer number (78950350080).

Almost surely, 2^{2021022201121} is an apocalyptic number.

It is an amenable number.

2021022201121 is a deficient number, since it is larger than the sum of its proper divisors (505389001439).

2021022201121 is a wasteful number, since it uses less digits than its factorization.

2021022201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36165.

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

Adding to 2021022201121 its reverse (1211022201202), we get a palindrome (3232044402323).

The spelling of 2021022201121 in words is "two trillion, twenty-one billion, twenty-two million, two hundred one thousand, one hundred twenty-one".