213002021212 has 24 divisors (see below), whose sum is σ = 391536133632. Its totient is φ = 101195886000.

The previous prime is 213002021161. The next prime is 213002021231. The reversal of 213002021212 is 212120200312.

It is a happy number.

It is a super-2 number, since 2×213002021212² (a number of 23 digits) contains 22 as substring.

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, 7652464 + ... + 7680247.

It is an arithmetic number, because the mean of its divisors is an integer number (16314005568).

Almost surely, 2^213002021212 is an apocalyptic number.

It is an amenable number.

213002021212 is a deficient number, since it is larger than the sum of its proper divisors (178534112420).

213002021212 is a wasteful number, since it uses less digits than its factorization.

213002021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15332889 (or 15332887 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 213002021212 its reverse (212120200312), we get a palindrome (425122221524).

The spelling of 213002021212 in words is "two hundred thirteen billion, two million, twenty-one thousand, two hundred twelve".