2212100210121 has 4 divisors (see below), whose sum is σ = 2949466946832. Its totient is φ = 1474733473412.

The previous prime is 2212100210113. The next prime is 2212100210129. The reversal of 2212100210121 is 1210120012122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2212100210113) and next prime (2212100210129).

It is a cyclic number.

It is not a de Polignac number, because 2212100210121 - 2³ = 2212100210113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2212100210121.

It is not an unprimeable number, because it can be changed into a prime (2212100210129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368683368351 + ... + 368683368356.

It is an arithmetic number, because the mean of its divisors is an integer number (737366736708).

Almost surely, 2^{2212100210121} is an apocalyptic number.

It is an amenable number.

2212100210121 is a deficient number, since it is larger than the sum of its proper divisors (737366736711).

2212100210121 is an equidigital number, since it uses as much as digits as its factorization.

2212100210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737366736710.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2212100210121 its reverse (1210120012122), we get a palindrome (3422220222243).

The spelling of 2212100210121 in words is "two trillion, two hundred twelve billion, one hundred million, two hundred ten thousand, one hundred twenty-one".