2120211220102 has 4 divisors (see below), whose sum is σ = 3180316830156. Its totient is φ = 1060105610050.

The previous prime is 2120211220097. The next prime is 2120211220109. The reversal of 2120211220102 is 2010221120212.

It is a happy number.

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

It is a super-2 number, since 2×2120211220102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120211220109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530052805024 + ... + 530052805027.

It is an arithmetic number, because the mean of its divisors is an integer number (795079207539).

Almost surely, 2^{2120211220102} is an apocalyptic number.

2120211220102 is a deficient number, since it is larger than the sum of its proper divisors (1060105610054).

2120211220102 is a wasteful number, since it uses less digits than its factorization.

2120211220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060105610053.

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

Adding to 2120211220102 its reverse (2010221120212), we get a palindrome (4130432340314).

The spelling of 2120211220102 in words is "two trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty thousand, one hundred two".