20210222200202 has 4 divisors (see below), whose sum is σ = 30315333300306. Its totient is φ = 10105111100100.

The previous prime is 20210222200163. The next prime is 20210222200279. The reversal of 20210222200202 is 20200222201202.

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

It can be written as a sum of positive squares in only one way, i.e., 13109548145521 + 7100674054681 = 3620711^2 + 2664709^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052555550049 + ... + 5052555550052.

Almost surely, 2^{20210222200202} is an apocalyptic number.

20210222200202 is a deficient number, since it is larger than the sum of its proper divisors (10105111100104).

20210222200202 is a wasteful number, since it uses less digits than its factorization.

20210222200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10105111100103.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20210222200202 its reverse (20200222201202), we get a palindrome (40410444401404).

It can be divided in two parts, 2021022 and 2200202, that added together give a palindrome (4221224).

The spelling of 20210222200202 in words is "twenty trillion, two hundred ten billion, two hundred twenty-two million, two hundred thousand, two hundred two".