30202121101212 has 72 divisors (see below), whose sum is σ = 78564739890000. Its totient is φ = 9775652479488.

The previous prime is 30202121101199. The next prime is 30202121101231. The reversal of 30202121101212 is 21210112120203.

30202121101212 is a `hidden beast` number, since 30 + 202 + 121 + 101 + 212 = 666.

It is a super-3 number, since 3×30202121101212³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22055037 + ... + 23384372.

Almost surely, 2^{30202121101212} is an apocalyptic number.

It is an amenable number.

30202121101212 is an abundant number, since it is smaller than the sum of its proper divisors (48362618788788).

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

30202121101212 is a wasteful number, since it uses less digits than its factorization.

30202121101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45439955 (or 45439950 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 30202121101212 its reverse (21210112120203), we get a palindrome (51412233221415).

The spelling of 30202121101212 in words is "thirty trillion, two hundred two billion, one hundred twenty-one million, one hundred one thousand, two hundred twelve".