211220100202 has 8 divisors (see below), whose sum is σ = 317911482756. Its totient is φ = 105249605952.

The previous prime is 211220100167. The next prime is 211220100211. The reversal of 211220100202 is 202001022112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 185279454481 + 25940645721 = 430441^2 + 161061^2 .

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

It is a super-2 number, since 2×211220100202² (a number of 23 digits) contains 22 as substring.

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, 180221343 + ... + 180222514.

Almost surely, 2^211220100202 is an apocalyptic number.

211220100202 is a deficient number, since it is larger than the sum of its proper divisors (106691382554).

211220100202 is a wasteful number, since it uses less digits than its factorization.

211220100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360444152.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 211220100202 its reverse (202001022112), we get a palindrome (413221122314).

The spelling of 211220100202 in words is "two hundred eleven billion, two hundred twenty million, one hundred thousand, two hundred two".