20221121210210 has 8 divisors (see below), whose sum is σ = 36398018178396. Its totient is φ = 8088448484080.

The previous prime is 20221121210189. The next prime is 20221121210249. The reversal of 20221121210210 is 1201212112202.

It can be written as a sum of positive squares in 2 ways, for example, as 18042046293649 + 2179074916561 = 4247593^2 + 1476169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011056060501 + ... + 1011056060520.

Almost surely, 2^{20221121210210} is an apocalyptic number.

20221121210210 is a deficient number, since it is larger than the sum of its proper divisors (16176896968186).

20221121210210 is a wasteful number, since it uses less digits than its factorization.

20221121210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022112121028.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20221121210210 its reverse (1201212112202), we get a palindrome (21422333322412).

The spelling of 20221121210210 in words is "twenty trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred ten thousand, two hundred ten".