2121012202210 has 32 divisors (see below), whose sum is σ = 4164967138752. Its totient is φ = 771264118080.

The previous prime is 2121012202189. The next prime is 2121012202213. The reversal of 2121012202210 is 122022101212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2121012202213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8407632 + ... + 8656228.

It is an arithmetic number, because the mean of its divisors is an integer number (130155223086).

Almost surely, 2^{2121012202210} is an apocalyptic number.

2121012202210 is a deficient number, since it is larger than the sum of its proper divisors (2043954936542).

2121012202210 is a wasteful number, since it uses less digits than its factorization.

2121012202210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326178.

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

Adding to 2121012202210 its reverse (122022101212), we get a palindrome (2243034303422).

The spelling of 2121012202210 in words is "two trillion, one hundred twenty-one billion, twelve million, two hundred two thousand, two hundred ten".