101202021019 has 12 divisors (see below), whose sum is σ = 111269904592. Its totient is φ = 91975934160.

The previous prime is 101202020981. The next prime is 101202021121. The reversal of 101202021019 is 910120202101.

It is a happy number.

It is not a de Polignac number, because 101202021019 - 2¹⁹ = 101201496731 is a prime.

It is a super-2 number, since 2×101202021019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101202020987 and 101202021005.

It is not an unprimeable number, because it can be changed into a prime (101202021919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320509 + ... + 552385.

Almost surely, 2^101202021019 is an apocalyptic number.

101202021019 is a deficient number, since it is larger than the sum of its proper divisors (10067883573).

101202021019 is a wasteful number, since it uses less digits than its factorization.

101202021019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235506 (or 235495 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 101202021019 in words is "one hundred one billion, two hundred two million, twenty-one thousand, nineteen".