21222010001210 has 32 divisors (see below), whose sum is σ = 39213063843840. Its totient is φ = 8266537738368.

The previous prime is 21222010001147. The next prime is 21222010001281. The reversal of 21222010001210 is 1210001022212.

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, 183937562 + ... + 184052901.

It is an arithmetic number, because the mean of its divisors is an integer number (1225408245120).

Almost surely, 2^{21222010001210} is an apocalyptic number.

21222010001210 is a deficient number, since it is larger than the sum of its proper divisors (17991053842630).

21222010001210 is a wasteful number, since it uses less digits than its factorization.

21222010001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367990622.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21222010001210 its reverse (1210001022212), we get a palindrome (22432011023422).

The spelling of 21222010001210 in words is "twenty-one trillion, two hundred twenty-two billion, ten million, one thousand, two hundred ten".