211102020022 has 4 divisors (see below), whose sum is σ = 316653030036. Its totient is φ = 105551010010.

The previous prime is 211102020013. The next prime is 211102020023. The reversal of 211102020022 is 220020201112.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 211102019984 and 211102020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102020023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52775505004 + ... + 52775505007.

It is an arithmetic number, because the mean of its divisors is an integer number (79163257509).

Almost surely, 2^211102020022 is an apocalyptic number.

211102020022 is a deficient number, since it is larger than the sum of its proper divisors (105551010014).

211102020022 is a wasteful number, since it uses less digits than its factorization.

211102020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105551010013.

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

Adding to 211102020022 its reverse (220020201112), we get a palindrome (431122221134).

The spelling of 211102020022 in words is "two hundred eleven billion, one hundred two million, twenty thousand, twenty-two".