22200120210121 has 16 divisors (see below), whose sum is σ = 25761172334976. Its totient is φ = 18736710702336.

The previous prime is 22200120210109. The next prime is 22200120210133. The reversal of 22200120210121 is 12101202100222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22200120210109) and next prime (22200120210133).

It is a cyclic number.

It is not a de Polignac number, because 22200120210121 - 2¹³ = 22200120201929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200120210095 and 22200120210104.

It is not an unprimeable number, because it can be changed into a prime (22200120211121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8935936 + ... + 11146801.

It is an arithmetic number, because the mean of its divisors is an integer number (1610073270936).

Almost surely, 2^{22200120210121} is an apocalyptic number.

It is an amenable number.

22200120210121 is a deficient number, since it is larger than the sum of its proper divisors (3561052124855).

22200120210121 is a wasteful number, since it uses less digits than its factorization.

22200120210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20085168.

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

Adding to 22200120210121 its reverse (12101202100222), we get a palindrome (34301322310343).

The spelling of 22200120210121 in words is "twenty-two trillion, two hundred billion, one hundred twenty million, two hundred ten thousand, one hundred twenty-one".