20212202010121 has 16 divisors (see below), whose sum is σ = 22380397200000. Its totient is φ = 18099593948800.

The previous prime is 20212202010097. The next prime is 20212202010139. The reversal of 20212202010121 is 12101020221202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20212202010121 - 2³³ = 20203612075529 is a prime.

It is a super-2 number, since 2×20212202010121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20212202010095 and 20212202010104.

It is not an unprimeable number, because it can be changed into a prime (20212202010151) 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 15 ways as a sum of consecutive naturals, for example, 10801996 + ... + 12534253.

It is an arithmetic number, because the mean of its divisors is an integer number (1398774825000).

Almost surely, 2^{20212202010121} is an apocalyptic number.

It is an amenable number.

20212202010121 is a deficient number, since it is larger than the sum of its proper divisors (2168195189879).

20212202010121 is a wasteful number, since it uses less digits than its factorization.

20212202010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23337440.

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

Adding to 20212202010121 its reverse (12101020221202), we get a palindrome (32313222231323).

The spelling of 20212202010121 in words is "twenty trillion, two hundred twelve billion, two hundred two million, ten thousand, one hundred twenty-one".