30210122020 has 48 divisors (see below), whose sum is σ = 68423266800. Its totient is φ = 11137867776.

The previous prime is 30210122009. The next prime is 30210122027. The reversal of 30210122020 is 2022101203.

It can be written as a sum of positive squares in 8 ways, for example, as 12572688384 + 17637433636 = 112128^2 + 132806^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (30210122027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88656 + ... + 261304.

It is an arithmetic number, because the mean of its divisors is an integer number (1425484725).

Almost surely, 2^30210122020 is an apocalyptic number.

It is an amenable number.

30210122020 is an abundant number, since it is smaller than the sum of its proper divisors (38213144780).

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

30210122020 is a wasteful number, since it uses less digits than its factorization.

30210122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173344 (or 173342 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30210122020 its reverse (2022101203), we get a palindrome (32232223223).

The spelling of 30210122020 in words is "thirty billion, two hundred ten million, one hundred twenty-two thousand, twenty".