20210211401 has 8 divisors (see below), whose sum is σ = 20667558144. Its totient is φ = 19756930320.

The previous prime is 20210211397. The next prime is 20210211407. The reversal of 20210211401 is 10411201202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20210211401 - 2² = 20210211397 is a prime.

It is a super-2 number, since 2×20210211401² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 1006361 + ... + 1026246.

It is an arithmetic number, because the mean of its divisors is an integer number (2583444768).

Almost surely, 2^20210211401 is an apocalyptic number.

It is an amenable number.

20210211401 is a deficient number, since it is larger than the sum of its proper divisors (457346743).

20210211401 is a wasteful number, since it uses less digits than its factorization.

20210211401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032831.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20210211401 its reverse (10411201202), we get a palindrome (30621412603).

The spelling of 20210211401 in words is "twenty billion, two hundred ten million, two hundred eleven thousand, four hundred one".