2121201102022 has 4 divisors (see below), whose sum is σ = 3181801653036. Its totient is φ = 1060600551010.

The previous prime is 2121201102017. The next prime is 2121201102029. The reversal of 2121201102022 is 2202011021212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2121201101987 and 2121201102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121201102029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530300275504 + ... + 530300275507.

It is an arithmetic number, because the mean of its divisors is an integer number (795450413259).

Almost surely, 2^{2121201102022} is an apocalyptic number.

2121201102022 is a deficient number, since it is larger than the sum of its proper divisors (1060600551014).

2121201102022 is a wasteful number, since it uses less digits than its factorization.

2121201102022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060600551013.

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

Adding to 2121201102022 its reverse (2202011021212), we get a palindrome (4323212123234).

The spelling of 2121201102022 in words is "two trillion, one hundred twenty-one billion, two hundred one million, one hundred two thousand, twenty-two".