21203044030212 has 48 divisors (see below), whose sum is σ = 54505754985024. Its totient is φ = 6361549360000.

The previous prime is 21203044030199. The next prime is 21203044030279.

It is a happy number.

21203044030212 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21203044030212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 795180339 + ... + 795207002.

It is an arithmetic number, because the mean of its divisors is an integer number (1135536562188).

Almost surely, 2^{21203044030212} is an apocalyptic number.

21203044030212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21203044030212 is an abundant number, since it is smaller than the sum of its proper divisors (33302710954812).

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

21203044030212 is a wasteful number, since it uses less digits than its factorization.

21203044030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590387460 (or 1590387458 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

It can be divided in two parts, 2120304 and 4030212, that added together give a palindrome (6150516).

The spelling of 21203044030212 in words is "twenty-one trillion, two hundred three billion, forty-four million, thirty thousand, two hundred twelve".