20211220201202 has 8 divisors (see below), whose sum is σ = 30316860754416. Its totient is φ = 10105599949732.

The previous prime is 20211220201171. The next prime is 20211220201229. The reversal of 20211220201202 is 20210202211202.

It is a happy number.

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, 2278268 + ... + 6753735.

It is an arithmetic number, because the mean of its divisors is an integer number (3789607594302).

Almost surely, 2^{20211220201202} is an apocalyptic number.

20211220201202 is a deficient number, since it is larger than the sum of its proper divisors (10105640553214).

20211220201202 is a wasteful number, since it uses less digits than its factorization.

20211220201202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10150872.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20211220201202 its reverse (20210202211202), we get a palindrome (40421422412404).

The spelling of 20211220201202 in words is "twenty trillion, two hundred eleven billion, two hundred twenty million, two hundred one thousand, two hundred two".