211421420302 has 16 divisors (see below), whose sum is σ = 319476914352. Its totient is φ = 104929260480.

The previous prime is 211421420297. The next prime is 211421420339. The reversal of 211421420302 is 203024124112.

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, 3533152 + ... + 3592492.

It is an arithmetic number, because the mean of its divisors is an integer number (19967307147).

Almost surely, 2^211421420302 is an apocalyptic number.

211421420302 is a deficient number, since it is larger than the sum of its proper divisors (108055494050).

211421420302 is a wasteful number, since it uses less digits than its factorization.

211421420302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72483.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 211421420302 its reverse (203024124112), we get a palindrome (414445544414).

The spelling of 211421420302 in words is "two hundred eleven billion, four hundred twenty-one million, four hundred twenty thousand, three hundred two".