2021211030030 has 64 divisors (see below), whose sum is σ = 5026877375040. Its totient is φ = 519501717504.

The previous prime is 2021211030029. The next prime is 2021211030037. The reversal of 2021211030030 is 300301121202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 2021211029991 and 2021211030009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021211030037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1511209 + ... + 2515188.

It is an arithmetic number, because the mean of its divisors is an integer number (78544958985).

Almost surely, 2^{2021211030030} is an apocalyptic number.

2021211030030 is an abundant number, since it is smaller than the sum of its proper divisors (3005666345010).

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

2021211030030 is a wasteful number, since it uses less digits than its factorization.

2021211030030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4027013.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2021211030030 its reverse (300301121202), we get a palindrome (2321512151232).

The spelling of 2021211030030 in words is "two trillion, twenty-one billion, two hundred eleven million, thirty thousand, thirty".