20210211402 has 16 divisors (see below), whose sum is σ = 40433057280. Its totient is φ = 6734631392.

The previous prime is 20210211397. The next prime is 20210211407. The reversal of 20210211402 is 20411201202.

It is an interprime number because it is at equal distance from previous prime (20210211397) and next prime (20210211407).

It is not an unprimeable number, because it can be changed into a prime (20210211407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505578 + ... + 544085.

It is an arithmetic number, because the mean of its divisors is an integer number (2527066080).

Almost surely, 2^20210211402 is an apocalyptic number.

20210211402 is an abundant number, since it is smaller than the sum of its proper divisors (20222845878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20210211402 is a wasteful number, since it uses less digits than its factorization.

20210211402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052877.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20210211402 its reverse (20411201202), we get a palindrome (40621412604).

The spelling of 20210211402 in words is "twenty billion, two hundred ten million, two hundred eleven thousand, four hundred two".