202011210221122 has 4 divisors (see below), whose sum is σ = 303016815331686. Its totient is φ = 101005605110560.

The previous prime is 202011210221101. The next prime is 202011210221131. The reversal of 202011210221122 is 221122012110202.

202011210221122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 155370765377961 + 46640444843161 = 12464781^2 + 6829381^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202011210221122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50502802555279 + ... + 50502802555282.

Almost surely, 2^{202011210221122} is an apocalyptic number.

202011210221122 is a deficient number, since it is larger than the sum of its proper divisors (101005605110564).

202011210221122 is a wasteful number, since it uses less digits than its factorization.

202011210221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101005605110563.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202011210221122 its reverse (221122012110202), we get a palindrome (423133222331324).

The spelling of 202011210221122 in words is "two hundred two trillion, eleven billion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty-two".