21121001203022 has 24 divisors (see below), whose sum is σ = 36858191367960. Its totient is φ = 9050826209040.

The previous prime is 21121001202989. The next prime is 21121001203037. The reversal of 21121001203022 is 22030210012112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11414429 + ... + 13135112.

It is an arithmetic number, because the mean of its divisors is an integer number (1535757973665).

Almost surely, 2^{21121001203022} is an apocalyptic number.

21121001203022 is a deficient number, since it is larger than the sum of its proper divisors (15737190164938).

21121001203022 is a wasteful number, since it uses less digits than its factorization.

21121001203022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24558336 (or 24558329 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21121001203022 its reverse (22030210012112), we get a palindrome (43151211215134).

The spelling of 21121001203022 in words is "twenty-one trillion, one hundred twenty-one billion, one million, two hundred three thousand, twenty-two".