211020120022 has 4 divisors (see below), whose sum is σ = 316530180036. Its totient is φ = 105510060010.

The previous prime is 211020120007. The next prime is 211020120043. The reversal of 211020120022 is 220021020112.

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 = 211020119984 and 211020120011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52755030004 + ... + 52755030007.

It is an arithmetic number, because the mean of its divisors is an integer number (79132545009).

Almost surely, 2^211020120022 is an apocalyptic number.

211020120022 is a deficient number, since it is larger than the sum of its proper divisors (105510060014).

211020120022 is a wasteful number, since it uses less digits than its factorization.

211020120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105510060013.

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

Adding to 211020120022 its reverse (220021020112), we get a palindrome (431041140134).

The spelling of 211020120022 in words is "two hundred eleven billion, twenty million, one hundred twenty thousand, twenty-two".