101220002019 has 12 divisors (see below), whose sum is σ = 152563481616. Its totient is φ = 64546088112.

The previous prime is 101220002011. The next prime is 101220002063. The reversal of 101220002019 is 910200022101.

It is not a de Polignac number, because 101220002019 - 2³ = 101220002011 is a prime.

It is a super-2 number, since 2×101220002019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101220001992 and 101220002010.

It is not an unprimeable number, because it can be changed into a prime (101220002011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244492552 + ... + 244492965.

It is an arithmetic number, because the mean of its divisors is an integer number (12713623468).

Almost surely, 2^101220002019 is an apocalyptic number.

101220002019 is a deficient number, since it is larger than the sum of its proper divisors (51343479597).

101220002019 is a wasteful number, since it uses less digits than its factorization.

101220002019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488985546 (or 488985543 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 101220002019 in words is "one hundred one billion, two hundred twenty million, two thousand, nineteen".