212102002021022 has 4 divisors (see below), whose sum is σ = 318153003031536. Its totient is φ = 106051001010510.

The previous prime is 212102002021003. The next prime is 212102002021031. The reversal of 212102002021022 is 220120200201212.

It is a happy number.

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

It is a super-2 number, since 2×212102002021022² (a number of 29 digits) contains 22 as substring.

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, 53025500505254 + ... + 53025500505257.

It is an arithmetic number, because the mean of its divisors is an integer number (79538250757884).

Almost surely, 2^{212102002021022} is an apocalyptic number.

212102002021022 is a deficient number, since it is larger than the sum of its proper divisors (106051001010514).

212102002021022 is a wasteful number, since it uses less digits than its factorization.

212102002021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106051001010513.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212102002021022 its reverse (220120200201212), we get a palindrome (432222202222234).

The spelling of 212102002021022 in words is "two hundred twelve trillion, one hundred two billion, two million, twenty-one thousand, twenty-two".