2121010021222 has 16 divisors (see below), whose sum is σ = 3368728653840. Its totient is φ = 998102902528.

The previous prime is 2121010021153. The next prime is 2121010021267. The reversal of 2121010021222 is 2221200101212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2121010021196 and 2121010021205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243029 + ... + 2405647.

It is an arithmetic number, because the mean of its divisors is an integer number (210545540865).

Almost surely, 2^{2121010021222} is an apocalyptic number.

2121010021222 is a deficient number, since it is larger than the sum of its proper divisors (1247718632618).

2121010021222 is a wasteful number, since it uses less digits than its factorization.

2121010021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216295.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2121010021222 its reverse (2221200101212), we get a palindrome (4342210122434).

The spelling of 2121010021222 in words is "two trillion, one hundred twenty-one billion, ten million, twenty-one thousand, two hundred twenty-two".