21211010219974 has 32 divisors (see below), whose sum is σ = 33824647284480. Its totient is φ = 9947295670752.

The previous prime is 21211010219969. The next prime is 21211010220011. The reversal of 21211010219974 is 47991201011212.

It is a congruent number.

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, 15088812 + ... + 16434544.

It is an arithmetic number, because the mean of its divisors is an integer number (1057020227640).

Almost surely, 2^{21211010219974} is an apocalyptic number.

21211010219974 is a deficient number, since it is larger than the sum of its proper divisors (12613637064506).

21211010219974 is a wasteful number, since it uses less digits than its factorization.

21211010219974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349884.

The product of its (nonzero) digits is 18144, while the sum is 40.

The spelling of 21211010219974 in words is "twenty-one trillion, two hundred eleven billion, ten million, two hundred nineteen thousand, nine hundred seventy-four".