202201221020123 has 16 divisors (see below), whose sum is σ = 220798307452800. Its totient is φ = 184045014466560.

The previous prime is 202201221020119. The next prime is 202201221020137. The reversal of 202201221020123 is 321020122102202.

It is not a de Polignac number, because 202201221020123 - 2² = 202201221020119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202201221020095 and 202201221020104.

It is not an unprimeable number, because it can be changed into a prime (202201221020153) 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, 127224098 + ... + 128803623.

It is an arithmetic number, because the mean of its divisors is an integer number (13799894215800).

Almost surely, 2^{202201221020123} is an apocalyptic number.

202201221020123 is a deficient number, since it is larger than the sum of its proper divisors (18597086432677).

202201221020123 is a wasteful number, since it uses less digits than its factorization.

202201221020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256028582.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 202201221020123 its reverse (321020122102202), we get a palindrome (523221343122325).

The spelling of 202201221020123 in words is "two hundred two trillion, two hundred one billion, two hundred twenty-one million, twenty thousand, one hundred twenty-three".